After every extra fight as an enemy, whether I win or lose, my game gets stuck. Immediately after the fight, the loading screen doesn't go away, but I can still hear the sound effects.

If I close the game and restart, I load into a black screen and the sound effects still play for jumps and attacks. I can open the menu and close it, which fixes the black screen, but my character remains unable to drop into the next level.

I haven't seen anyone with similar issues and I haven't found any way to solve it. The game plays normally otherwise. I've owned the game since launch on Steam and was able to play it normally until now.